addon problem

I put the dlclist on my desktop so I can add the addons right. Everything is all lined up put it
back into the folder, when I open the copied dcllist the addon line I just added is at
the end of the item which is on top. so when I hit L and the addon box comes up and I click on a addon the is already suppose to be there like superman it come up model not found . so please
tell me what I need to do.
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